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-rw-r--r--include/net/red.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/red.h b/include/net/red.h
index 5ccdbb3d472..a4eb37946f2 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -212,7 +212,7 @@ static inline unsigned long red_calc_qavg_from_idle_time(struct red_parms *p)
* Seems, it is the best solution to
* problem of too coarse exponent tabulation.
*/
- us_idle = (p->qavg * us_idle) >> p->Scell_log;
+ us_idle = (p->qavg * (u64)us_idle) >> p->Scell_log;
if (us_idle < (p->qavg >> 1))
return p->qavg - us_idle;